Toward new era of quantum electrical measurements through phase slips

Leistungen

Measurement of coherent QPS in a QPS qubit

Report on the measurements of coherent QPS in a qubittype device made from at least one of the different materials explored in the project A report will be uploaded to the project repository

Report on optimal circuit for CQPS current standard

A report summarising results of simulations of the CQPS circuit will be uploaded to the project data repository. The report will show results of simulations. It will describe the optimized circuit and the optimised parameters of the circuit elements.

Report on fundamental properties relevant for CQPS in disordered SCs

A report and relevant data will be uploaded to project data repository The report will cover the work done towards understanding the fundamental properties relevant for CQPS devices in disordered superconductors

Report on the progress of hybrid device fabrication technology

A description about the realized thin film hybrid technology will be given. The reached device properties will be reported and the route towards integrated standards concretised.

Report on the progress of superconducting disordered silicides for CQPS applications

A report and relevant data will be uploaded to project data repository. The report will cover the work done towards implementing CQPS circuit elements from superconducting silicides.

Report on the progress of developing 2D superconductor technologies

We describe the progress on 2D superconducting materials during the project's first year and plan future actions.

Web site, logo and flyer

Design project logotype. Set up project webpage available for the public. Set up the project data repository for secure sharing of project specific documents and data within the consortium. And prepare a 1-page project flyer for the scientific community.

Data management plan (DMP)

Complete the project data management plan and make it available to all project partners.

Veröffentlichungen

Counting statistics of single electron transport in bilayer graphene quantum dots

Autoren: Rebekka Garreis; Jonas Daniel Gerber; Veronika Stará; Chuyao Tong; Carolin Gold; Marc Röösli; Kenji Watanabe; Takashi Taniguchi; Klaus Ensslin; Thomas Ihn; Annika Kurzmann
Veröffentlicht in: Physical review research, Issue 5, 2023, Page(s) 013042, ISSN 2643-1564
Herausgeber: APS
DOI: 10.1103/physrevresearch.5.013042

Enhancement of Superconductivity by Amorphizing Molybdenum Silicide Films Using a Focused Ion Beam

Autoren: Emma Mykkänen, Arijit Bera, Janne S. Lehtinen, Alberto Ronzani, Katja Kohopää, Teresa Hönigl-Decrinis, Rais Shaikhaidarov, Sebastian E. de Graaf, Joonas Govenius, Mika Prunnila
Veröffentlicht in: Nanomaterials, Issue 10/5, 2020, Page(s) 950, ISSN 2079-4991
Herausgeber: MDPI
DOI: 10.3390/nano10050950

Superconducting ‘twin’ qubit

Autoren: I. V. Antonov, R. S. Shaikhaidarov, V. N. Antonov, O. V. Astafiev
Veröffentlicht in: Physical Review B, Issue 102/11, 2020, Page(s) 115422, ISSN 2469-9950
Herausgeber: APS
DOI: 10.1103/physrevb.102.115422

Dual Fraunhofer interference and charge fluctuations in long quantum phase slip wires

Autoren: S. E. de Graaf
Veröffentlicht in: Physical Review B, Issue 102/14, 2020, Page(s) 144509, ISSN 2469-9950
Herausgeber: APS
DOI: 10.1103/physrevb.102.144509

Kondo effect and spin-orbit coupling in graphene quantum dots.

Autoren: Annika Kurzmann; Yaakov Kleeorin; Chuyao Tong; Rebekka Garreis; Angelika Knothe; Marius Eich; Christopher Mittag; Carolin Gold; Folkert K. de Vries; Kenji Watanabe; Takashi Taniguchi; Vladimir I. Fal'ko; Yigal Meir; Thomas Ihn; Thomas Ihn; Klaus Ensslin; Klaus Ensslin
Veröffentlicht in: Nature Communications, Issue 12, 2021, Page(s) 6004, ISSN 2041-1723
Herausgeber: Nature Publishing Group
DOI: 10.3929/ethz-b-000521794

Driving a low critical current Josephson junction array with a mode-locked laser

Autoren: J. Nissilä, T. Fordell, K. Kohopää, E. Mykkänen, P. Immonen, R. N. Jabdaraghi, E. Bardalen, O. Kieler, B. Karlsen, P. A. Øhlckers, R. Behr, A. J. Manninen, J. Govenius, and A. Kemppinen
Veröffentlicht in: Applied Physics Letters, Issue 119, 2021, Page(s) 032601, ISSN 1077-3118
Herausgeber: American Physical Society
DOI: 10.1063/5.0060804

Quantized current steps due to the a.c. coherent quantum phase-slip effect

Autoren: Rais S. Shaikhaidarov; Kyung Ho Kim; Jacob W. Dunstan; Ilya V. Antonov; Sven Linzen; Mario Ziegler; Dmitry S. Golubev; Vladimir N. Antonov; Evgeni V. Il’ichev; Oleg V. Astafiev
Veröffentlicht in: Nature, Issue 608, 2022, Page(s) 45-49, ISSN 0028-0836
Herausgeber: Nature Publishing Group
DOI: 10.1038/s41586-022-04947-z

Superconducting phase transition in inhomogeneous chains of superconducting islands

Autoren: Eduard Ilin, Irina Burkova, Xiangyu Song, Michael Pak, Dmitri S. Golubev, Alexey Bezryadin
Veröffentlicht in: Physical Review B, Issue 102/13, 2020, Page(s) 134502, ISSN 2469-9950
Herausgeber: APS
DOI: 10.1103/physrevb.102.134502

Fabry–Pérot cavities and quantum dot formation at gate-defined interfaces in twisted double bilayer graphene

Autoren: Elías Portolés; Giulia Zheng; Folkert K. de Vries; Jihang Zhu; Petar Tomić; Takashi Taniguchi; Kenji Watanabe; Allan H. MacDonald; Klaus Ensslin; Thomas Ihn; Peter Rickhaus
Veröffentlicht in: 2D Materials, Issue 9, 2021, Page(s) 014003, ISSN 2053-1583
Herausgeber: IOP
DOI: 10.1088/2053-1583/ac33c2

Interference, diffraction, and diode effects in superconducting array based on bismuth antimony telluride topological insulator

Autoren: Xiangyu Song; Soorya Suresh Babu; Yang Bai; Dmitry S. Golubev; Irina Burkova; Alexander Romanov; Eduard Ilin; James N. Eckstein; Alexey Bezryadin
Veröffentlicht in: Communications physics, Issue 6, 2023, Page(s) 177, ISSN 2399-3650
Herausgeber: Nature
DOI: 10.1038/s42005-023-01288-9

Supercurrent diode effect and magnetochiral anisotropy in few-layer NbSe2

Autoren: Bauriedl, Lorenz; Bäuml, Christian; Fuchs, Lorenz; Baumgartner, Christian; Paulik, Nicolas; Bauer, Jonas M.; Lin, Kai-Qiang; Lupton, John M.; Taniguchi, Takashi; Watanabe, Kenji; Strunk, Christoph; Paradiso, Nicola
Veröffentlicht in: Nature Communications, Issue 13, 2022, Page(s) 4266, ISSN 2041-1723
Herausgeber: Nature Publishing Group
DOI: 10.1038/s41467-022-31954-5

Tailoring the Band Structure of Twisted Double Bilayer Graphene with Pressure.

Autoren: Bálint Szentpéteri; Peter Rickhaus; Folkert K. de Vries; Albin Márffy; Bálint Fülöp; Endre Tóvári; Kenji Watanabe; Takashi Taniguchi; Andor Kormányos; Szabolcs Csonka; Péter Makk
Veröffentlicht in: Nano Letters, Issue 21, 2021, Page(s) 8777, ISSN 1530-6992
Herausgeber: American Chemical Society
DOI: 10.3929/ethz-b-000516208

Wafer-level uniformity of atomic-layer-deposited niobium nitride thin films for quantum devices

Autoren: Emanuel Knehr; Emanuel Knehr; Mario Ziegler; Sven Linzen; Konstantin Ilin; Patrick Schanz; Jonathan Plentz; Marco Diegel; Heidemarie Schmidt; Heidemarie Schmidt; Evgeni Il'ichev; Michael Siegel
Veröffentlicht in: Journal of vacuum science and technology A, Issue 39, 2021, Page(s) 052401, ISSN 1520-8559
Herausgeber: American Institute of Physics
DOI: 10.1116/6.0001126

Supporting quantum technologies with an ultralow-loss silicon photonics platform

Autoren: Matteo Cherchi; Arijit Bera; Antti Kemppinen; Jaani Nissilä; Kirsi Tappura; Marco Caputo; Lauri Lehtimäki; Janne Lehtinen; Joonas Govenius; Tomi Hassinen; Mika Prunnila; Timo Aalto
Veröffentlicht in: Advanced Photonics Nexus, Issue 2, 2023, Page(s) 024002, ISSN 2791-1519
Herausgeber: SPIE and Chinese Laser Press
DOI: 10.1117/1.apn.2.2.024002

A tunable monolithic SQUID in twisted bilayer graphene

Autoren: Elías Portolés; Shuichi Iwakiri; Giulia Zheng; Peter Rickhaus; Takashi Taniguchi; Kenji Watanabe; Thomas Ihn; Klaus Ensslin; Folkert K. de Vries
Veröffentlicht in: Nature Nanotechnology, Issue 17, 2022, Page(s) 1159-1164, ISSN 1748-3387
Herausgeber: Nature Publishing Group
DOI: 10.1038/s41565-022-01222-0

Scattering between Minivalleys in Twisted Double Bilayer Graphene

Autoren: Petar Tomić; Peter Rickhaus; Aitor Garcia-Ruiz; Giulia Zheng; Elías Portolés; Vladimir Fal’ko; Kenji Watanabe; Takashi Taniguchi; Klaus Ensslin; Thomas Ihn; Folkert K. de Vries
Veröffentlicht in: Physical Review Letters, Issue 128, 2021, Page(s) 057702, ISSN 1079-7114
Herausgeber: American Physical Society
DOI: 10.1103/physrevlett.128.057702

Supercurrent and Phase Slips in a Ballistic Carbon Nanotube Bundle Embedded into a van der Waals Heterostructure

Autoren: Christian Bäuml; Lorenz Bauriedl; Magdalena Marganska; Milena Grifoni; Christoph Strunk; Nicola Paradiso
Veröffentlicht in: Nano Letters, Issue 21, 2021, Page(s) 8627, ISSN 1530-6992
Herausgeber: American Chemical Society
DOI: 10.1021/acs.nanolett.1c02565

Gate-defined Josephson junctions in magic-angle twisted bilayer graphene

Autoren: Folkert K. de Vries; Elías Portolés; Giulia Zheng; Takashi Taniguchi; Kenji Watanabe; Thomas Ihn; Klaus Ensslin; Peter Rickhaus
Veröffentlicht in: Nature Nanotechnology, Issue 16, 2021, Page(s) 760, ISSN 1748-3387
Herausgeber: Nature Publishing Group
DOI: 10.1038/s41565-021-00896-2

Gate-Defined Electron Interferometer in Bilayer Graphene

Autoren: Shuichi Iwakiri; Folkert K. de Vries; Elías Portolés; Giulia Zheng; Takashi Taniguchi; Kenji Watanabe; Thomas Ihn; Klaus Ensslin
Veröffentlicht in: Nano Letters, Issue 22, 2022, Page(s) 6292-6297, ISSN 1530-6992
Herausgeber: ACS
DOI: 10.1021/acs.nanolett.2c01874

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